/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */
package org.jbpm.process.core.datatype.impl.coverter;

import java.util.Collections;
import java.util.HashMap;
import java.util.Map;
import java.util.function.UnaryOperator;

import com.fasterxml.jackson.databind.JsonNode;

public class CloneHelperRegister {

    private static final CloneHelperRegister instance = new CloneHelperRegister();

    public static CloneHelperRegister get() {
        return instance;
    }

    private Map<Class<?>, UnaryOperator<?>> registeredCloners = new HashMap<>();

    private CloneHelperRegister() {
        registeredCloners.put(JsonNode.class, o -> ((JsonNode) o).deepCopy());
    }

    public <T> void registerCloner(Class<T> type, UnaryOperator<T> cloner) {
        registeredCloners.put(type, cloner);
    }

    public Map<Class<?>, UnaryOperator<?>> getCloners() {
        return Collections.unmodifiableMap(registeredCloners);
    }
}
